20078028

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 53079936

約数和(自身を除く): 33001908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 61, 82, 122, 123, 164, 183, 223, 244, 246, 366, 369, 446, 492, 549, 669, 732, 738, 892, 1098, 1338, 1476, 2007, 2196, 2501, 2676, 4014, 5002, 7503, 8028, 9143, 10004, 13603, 15006, 18286, 22509, 27206, 27429, 30012, 36572, 40809, 45018, 54412, 54858, 81618, 82287, 90036, 109716, 122427, 163236, 164574, 244854, 329148, 489708, 557723, 1115446, 1673169, 2230892, 3346338, 5019507, 6692676, 10039014, 20078028]

約数ペア:

[(1, 20078028), (2, 10039014), (3, 6692676), (4, 5019507), (6, 3346338), (9, 2230892), (12, 1673169), (18, 1115446), (36, 557723), (41, 489708), (61, 329148), (82, 244854), (122, 164574), (123, 163236), (164, 122427), (183, 109716), (223, 90036), (244, 82287), (246, 81618), (366, 54858), (369, 54412), (446, 45018), (492, 40809), (549, 36572), (669, 30012), (732, 27429), (738, 27206), (892, 22509), (1098, 18286), (1338, 15006), (1476, 13603), (2007, 10004), (2196, 9143), (2501, 8028), (2676, 7503), (4014, 5002)]